N,H = map(int,input().split())
A = list(map(int,input().split()))
flg = 0
MOD = 10**9+7
num = 1
for a in A:
    num *= a
    if num%H == 0:
        flg = 1
        break
    num %= MOD
if flg:
    print("YES")
else:
    print("NO")